Does it tighten perfectly to that angle? or did you use a good PTFE thread sealer / locker and kept it just a hair loose or did you over-tighten it? That looks like a little to perfect of a place to stop.
2001 ZX3 2.0L Zetec-
Hatch Nation #42
Going through Rebuild See "The TICK Build Thread" for details (http://www.focusfanatics.com/forum/showthread.php?t=289168&referrerid=62897)